320123856

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:154

約数の個数: 240

約数和(自身を含む): 987555840

約数和(自身を除く): 667431984

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 31, 38, 39, 48, 52, 57, 62, 67, 76, 78, 93, 104, 114, 124, 134, 152, 156, 169, 186, 201, 208, 228, 247, 248, 268, 304, 312, 338, 372, 402, 403, 456, 494, 496, 507, 536, 589, 624, 676, 741, 744, 804, 806, 871, 912, 988, 1014, 1072, 1178, 1209, 1273, 1352, 1482, 1488, 1608, 1612, 1742, 1767, 1976, 2028, 2077, 2356, 2418, 2546, 2613, 2704, 2964, 3211, 3216, 3224, 3484, 3534, 3819, 3952, 4056, 4154, 4712, 4836, 5092, 5226, 5239, 5928, 6231, 6422, 6448, 6968, 7068, 7638, 7657, 8112, 8308, 9424, 9633, 9672, 10184, 10452, 10478, 11323, 11856, 12462, 12844, 13936, 14136, 15276, 15314, 15717, 16549, 16616, 19266, 19344, 20368, 20904, 20956, 22646, 22971, 24924, 25688, 27001, 28272, 30552, 30628, 31434, 33098, 33232, 33969, 38532, 39463, 41808, 41912, 45292, 45942, 49647, 49848, 51376, 54002, 61104, 61256, 62868, 66196, 67938, 77064, 78926, 81003, 83824, 90584, 91884, 99294, 99541, 99696, 108004, 118389, 122512, 125736, 132392, 135876, 154128, 157852, 162006, 181168, 183768, 198588, 199082, 215137, 216008, 236778, 251472, 264784, 271752, 298623, 315704, 324012, 351013, 367536, 397176, 398164, 430274, 432016, 473556, 513019, 543504, 597246, 631408, 645411, 648024, 702026, 794352, 796328, 860548, 947112, 1026038, 1053039, 1194492, 1290822, 1296048, 1404052, 1539057, 1592656, 1721096, 1894224, 2052076, 2106078, 2388984, 2581644, 2808104, 3078114, 3442192, 4104152, 4212156, 4777968, 5163288, 5616208, 6156228, 6669247, 8208304, 8424312, 10326576, 12312456, 13338494, 16848624, 20007741, 24624912, 26676988, 40015482, 53353976, 80030964, 106707952, 160061928, 320123856]

約数ペア:

[(1, 320123856), (2, 160061928), (3, 106707952), (4, 80030964), (6, 53353976), (8, 40015482), (12, 26676988), (13, 24624912), (16, 20007741), (19, 16848624), (24, 13338494), (26, 12312456), (31, 10326576), (38, 8424312), (39, 8208304), (48, 6669247), (52, 6156228), (57, 5616208), (62, 5163288), (67, 4777968), (76, 4212156), (78, 4104152), (93, 3442192), (104, 3078114), (114, 2808104), (124, 2581644), (134, 2388984), (152, 2106078), (156, 2052076), (169, 1894224), (186, 1721096), (201, 1592656), (208, 1539057), (228, 1404052), (247, 1296048), (248, 1290822), (268, 1194492), (304, 1053039), (312, 1026038), (338, 947112), (372, 860548), (402, 796328), (403, 794352), (456, 702026), (494, 648024), (496, 645411), (507, 631408), (536, 597246), (589, 543504), (624, 513019), (676, 473556), (741, 432016), (744, 430274), (804, 398164), (806, 397176), (871, 367536), (912, 351013), (988, 324012), (1014, 315704), (1072, 298623), (1178, 271752), (1209, 264784), (1273, 251472), (1352, 236778), (1482, 216008), (1488, 215137), (1608, 199082), (1612, 198588), (1742, 183768), (1767, 181168), (1976, 162006), (2028, 157852), (2077, 154128), (2356, 135876), (2418, 132392), (2546, 125736), (2613, 122512), (2704, 118389), (2964, 108004), (3211, 99696), (3216, 99541), (3224, 99294), (3484, 91884), (3534, 90584), (3819, 83824), (3952, 81003), (4056, 78926), (4154, 77064), (4712, 67938), (4836, 66196), (5092, 62868), (5226, 61256), (5239, 61104), (5928, 54002), (6231, 51376), (6422, 49848), (6448, 49647), (6968, 45942), (7068, 45292), (7638, 41912), (7657, 41808), (8112, 39463), (8308, 38532), (9424, 33969), (9633, 33232), (9672, 33098), (10184, 31434), (10452, 30628), (10478, 30552), (11323, 28272), (11856, 27001), (12462, 25688), (12844, 24924), (13936, 22971), (14136, 22646), (15276, 20956), (15314, 20904), (15717, 20368), (16549, 19344), (16616, 19266)]